"This resilient fruit can flourish even in the heat of the desert. The hydrating liquid inside provides a cooling effect that, when cooked, increases your heat resistance."

— In-Game Description

The Hydromelon is a natural material found in Breath of the Wild. This item can be eaten to recover ½ of a heart, and can be sold to shop-vendors all over Hyrule for 4 Rupees each. They tend to grow inside of the Gerudo Desert, sprouting from areas of greenery in the desert, but they are sometimes stored inside of Crates in close proximity to Bokoblin Camps. This material can be purchased from Emri at the Kara Kara Bazaar for a price of 16 Rupees each. Hydromelons can be used in many Recipes, and they have a cooking effect of heat resistance.